Quaife ATB Helical Limited Slip Differential for Ford BC/IB5 Gearbox. The BC/IB5 Gearbox is typically found various Ford's including Mk3/4/5/6 Escort and Orion, Ka, Fiesta, Puma, Focus.

Quaife Part Number: QDF7Z

Quaife ATB Helical LSD differential for Ford BC/IB5 is suitable for Ford models using BC/IB5 gearbox. A direct replacement for the standard Ford open differential, the Quaife ATB Helical LSD differential transforms your car’s performance.

Unlike a conventional plate-style limited slip differential, the Ford BC/IB5 Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation.

The Ford BC/IB5 Quaife ATB Helical LSD differential never locks harshly with a set pre-load of wheel slip across the driven axle, like a conventional LSD. Rather, the Ford BC/IB5 Quaife ATB Helical LSD differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks.

The Ford BC/IB5 Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheelspin, eliminating torque steer and snatching in front wheel drive cars compared to conventional LSD units, and a maintenance-free design which retains the standard oil lubrication.

The Ford BC/IB5 Quaife ATB Helical LSD differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards.

With over 370 applications, the Quaife ATB Helical LSD differential is second to none. Accept no imitations!

Quaife ATB Helical LSD differentials are used by Ford, General Motors and Daimler-Chrysler as original equipment.